摘要
对６条大裂纹的应力强度因子进行了研究，分析了裂纹前缘应力强度因子变化规律，以及单裂纹的开裂规律，从而对反应器裂纹开裂及其裂纹的形貌有了规律性的认识，指出了在多裂纹同时出现的情况下，由于相互影响，其ＫⅠ值往往小于单裂纹的ＫⅠ，危险性明显降低。而单裂纹开裂的总趋势是稍向深，但主要是向下开裂。
The stress intensity factors of six main c racks are studied, the variation of the front stress intensity factors of the cracks is analysed and the rending of single crack is examined.A general knowledge of the reactor crack rending and the crack shape is gained.KⅠof the crack is less than that of a single crack.When the cracks appear simultaneously, the danger is clearly reduced. The general trend of single crack rending is deeper.
出处
《大庆石油学院学报》
CAS
北大核心
1996年第4期121-125,共5页
Journal of Daqing Petroleum Institute
关键词
加氢反应器
应力强度因子
光弹法
油气加工设备
inner surface,multiple cracks,hydrogenation reactor,stress intensity factors,photo-elastic methods
